What is the meaning of thaw?

noun

• The process whereby heat changes something from a solid to a liquid.
  • usage: "the power failure caused a refrigerator melt that was a disaster"; "the thawing of a frozen turkey takes several hours"
  • synonyms: melt, thawing, melting
• Warm weather following a freeze; snow and ice melt.
  • usage: "they welcomed the spring thaw"
  • synonyms: thawing, warming
• A relaxation or slackening of tensions or reserve; becoming less hostile.
  • usage: "the thaw between the United States and Russia has led to increased cooperation in world affairs"

verb

• Become or cause to become soft or liquid.
  • usage: "The sun melted the ice"; "the ice thawed"; "the ice cream melted"; "The heat melted the wax"; "The giant iceberg dissolved over the years during the global warming phase"; "dethaw the meat"
  • synonyms: dissolve, unfreeze, unthaw, dethaw, melt